JPS6339811Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a raw material supply device used in beverage vending machines and the like.

(Prior Art) Generally, in vending machines for beverages such as coffee, a raw material supply device is used to supply powdered raw materials in fixed amounts at a time. As this raw material supply device, conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 51-8799, Japanese Utility Model Application Publication No. 53-91183, etc.
A rectangular parallelepiped-shaped container is formed to accommodate powdery raw materials, and a rotating agitator is rotatably provided between the front and rear surfaces of the container in the lower part of the interior of the container, with its rotating shaft oriented in the lateral direction, and further, A spiral extrusion body is rotatably provided below the stirring body approximately parallel to its rotation axis, and the rotation of the stirring body supplies the raw material in the container downward while stirring, and the rotation of the extrusion body supplies the raw material downward. Many are used that feed by extruding in the axial direction.

(Problem to be solved by the invention) The raw material container in the raw material supply device as described above has a rectangular parallelepiped shape as a whole, but the lower part guides the raw material stored inside to the extrusion body at the lower part. Therefore, at least both left and right side surfaces are formed as linear inclined surfaces so that the width gradually becomes narrower toward the lower extruded body, and the lower part of the front surface is formed as an inwardly inclined surface. Therefore, portions that cannot be reached by the rotating locus of the stirring body are formed in the bent portion between the sloped surfaces δ on both sides and the vertical surface above, and in the sloped portion on the front surface. On the other hand, the raw materials for fresh coffee are fine particles, have moderate adhesive strength, and have the property of being easy to maintain their current state, and raw materials that enter the parts that the stirring body cannot reach will accumulate in these parts. There is a portion that does not reach the extruded body below. In addition, in order to facilitate the supply of raw materials to the extrusion body, if the slopes on both sides are formed at a steep angle, the outer diameter of the extrusion body is usually significantly smaller than the outer diameter of the rotation locus of the stirring body, so the extrusion The container is now located far away from the stirrer, and as a result, a large hollow space is created between the stirrers, the stirring effect of the stirrer is lost, and raw materials tend to remain stuck on the inner surface of the container. Moreover, the quantitative nature of supplying the raw material by the extruder every fixed amount also deteriorates, resulting in variations in the supply amount.

The purpose of the present invention is to reduce the part of the lower part of the container that the stirring body cannot reach, thereby preventing raw materials from remaining inside the container, and also to allow the stirring body and extrusion body to be placed close to each other. It is an object of the present invention to provide a raw material supply device that can always quantitatively supply a fixed amount without creating a large hollow space between the raw materials.

[Structure of the idea]

(Means for Solving the Problems) The raw material supply device according to the present invention includes a rectangular parallelepiped-shaped container for storing powdery raw materials, and a stirring blade attached to a rotating shaft. A stirring body is rotatably provided with a rotating shaft arranged horizontally in between, and a stirring body is rotatably provided below the stirring body approximately parallel to the rotating shaft, and the raw material is pushed out in the axial direction by rotational action. In the raw material supply device equipped with a spiral extrusion body, the container is
The front and rear surfaces are vertical, and the upper part of both sides is perpendicular to the rotation axis of the stirring body, and the section below the rotation axis of the stirring body in the direction perpendicular to the rotation axis is the stirring blade of the stirring body. And, it is formed in an arc shape along the rotation locus of the extruded body.

(Function) In the present invention, the raw material in the container is supplied downward while being stirred by the rotation of the stirring body, and the raw material is pushed out and supplied in the axial direction by the rotation of the extrusion body.

At this time, below the rotation axis of the agitator, the cross sections on both sides of the container are arcuate along the rotation locus of the stirring blades of the agitator and the extruder. It rotates closely along the inner surface of the surface and sends out the raw material that tends to adhere to the inner surface of the container by scraping it off. In addition, the front and rear surfaces of the container are vertical,
Since the stirring blades of the stirring body are arranged sufficiently close to each other on the front and rear surfaces of the lower part of the container, the raw material is scraped and sent out from the front and rear surfaces of the container as well. Therefore, it is possible to reduce the portion of the lower part of the container that the stirring body cannot reach, and almost no raw material remains in the container.

In addition, since the cross-sections of both sides of the lower part of the container are arcuate along the rotation locus of the stirring blades of the stirring body and the extrusion body, the stirring blades of the stirring body and the extrusion body can be placed close to each other. There is no large hollow space between the two that would cause raw materials to remain, and the extruder ensures quantitative supply of a fixed amount.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Reference numeral 11 denotes a rectangular parallelepiped-shaped container for storing powdery raw materials such as fresh coffee raw materials;
A stirring body 12 is provided inside and below. This stirring body 12 has a plurality of substantially U-shaped stirring blades 13 attached to a rotating shaft 14, and the rotating shaft 14 is arranged in the horizontal direction to
It is rotatably supported between 11b. Further, a spiral extrusion body 15 is provided below the stirring body 12 so as to be horizontally rotatable so as to run substantially parallel to the rotation axis 14 thereof. The tip of this extruded body 15 reaches into the supply cylinder 17 provided in the container 11, and the base end is integrally connected to the rotating body 18. Then, the rotating shaft 1 of the stirring body 12
Sprockets 19 and 20 are fixed to the protrusion of the center shaft 18a of the rotating body 18 to the outside of the container 11, and a chain 21 is stretched between these sprockets 19 and 20. is connected to the motor 2 via the joint fitting 23.
It is connected to the output shaft 24 of No. 5.

The container 11 is formed as follows. The front and back surfaces 11a and 11b of the container 11 are vertical, and the stirring blades 13 of the stirring body 12 are formed to have a size that is as large as the length of the container 11 in the front and back direction (left and right direction in FIG. 2). In addition, container 11
Both side surfaces 11c and 11d are as shown in FIG.
Above the rotating shaft 14 of the stirring body 12, the shape is vertical and the whole has a rectangular parallelepiped shape, and below the rotating shaft 14 of the stirring body 12, the cross section in the direction orthogonal to the rotating shaft 14 is the same as that of the stirring body 12. It has an arcuate shape along the rotation locus of the stirring blade 13 and the extrusion body 15. By forming it in this way, there will be no hollow portion where the rotation locus of the stirring body 12 cannot reach. Further, even if the outer diameter of the extruded body 15 is significantly smaller than the outer diameter of the rotation locus of the stirring body 12, the distance H between the outer peripheral surfaces thereof can be made sufficiently small.

In the above configuration, when a raw material supply command is given with powdery raw material placed in the container 11, the motor 25 is operated, and the rotary body 18 is connected to the output shaft 24 and the rotary shaft connected via the chain 21. 14 rotates, and the stirring body 12 and extrusion body 15 in the container 11 also rotate. And the stirring body 12
The rotation of the extruder 15 causes the raw material in the container 11 to be supplied downward while being stirred, and the rotation of the extruder 15 pushes the raw material to the left in FIG. In this case, below the rotating shaft 14 of the stirring body 12, the cross section of both side surfaces of the container 11 is the stirring blade 13 of the stirring body 12 and the extrusion body 1.
5, the stirring body 12 and the pushing body 13 rotate closely along the inner surfaces on both sides of the container 11, and
The material that tries to adhere to the inner surface of the container 1 is scraped off and sent out. Further, since the front and rear surfaces of the container 11 are vertical, and the stirring blades 13 of the stirring body 12 are arranged sufficiently close to each other on the front and rear surfaces of the lower part of the container 11, the raw materials can also be stirred on the front and rear surfaces of the container 11. Take it and send it out. Therefore, container 11
The lower part of the container 11 that the stirring body 12 cannot reach can be reduced, and almost no raw material remains in the container 11.

In addition, since the cross section of both side surfaces of the lower part of the container 11 has an arc shape along the rotation locus of the stirring blade 13 of the stirring body 12 and the extrusion body 15, the stirring blade 13 of the stirring body 12 and the extrusion body 15 are The extruded body 15 can be placed close to the stirring body 1, and there is no large hollow space between the two that could cause raw materials to remain.
2, the raw material stirred and supplied can be evenly and reliably caught and extruded, and therefore a stable constant amount of raw material can be supplied at all times.

[Effect of idea]

According to the present invention, below the rotation axis of the stirring body, the cross sections of both side surfaces of the container are arcuate along the rotation locus of the stirring blades of the stirring body and the extrusion body, so that the stirring body and the extrusion body are It rotates closely along the inner surface of both sides of the container, scraping and feeding out the raw material that is about to adhere to the inner surface of the container.The front and rear surfaces of the container are vertical, and the stirring body Since the stirring blades are arranged sufficiently close to each other on the front and rear surfaces of the lower part of the container, the raw material is scraped off and sent out from the front and rear surfaces of the container as well. Even if it is a raw material that can be reduced in quantity, has fine particles, has moderate adhesive strength, and is easy to maintain in its current state, it will hardly remain in the container.

In addition, since the cross-sections of both sides of the lower part of the container are arcuate along the rotation locus of the stirring blades of the stirring body and the extrusion body, the stirring blades of the stirring body and the extrusion body can be placed close to each other. There is no large hollow space between the two that would cause raw materials to remain, and the extruder ensures quantitative supply of a fixed amount, making it possible to always stably supply a fixed amount.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the raw material supply device according to the present invention, FIG. 2 is a longitudinal sectional side view of FIG. 1, and FIG. 3 is a longitudinal sectional front view of FIG. 1. 11... Container, 11a, 11b... Front and rear surfaces, 1
1c, 11d... Both sides, 12... Stirring body, 13
... Stirring blade, 14 ... Rotating shaft, 15 ... Extrusion body.

Claims (1)

[Claims for Utility Model Registration] A rectangular parallelepiped container containing powdery raw materials and a stirring blade attached to a rotating shaft, the rotating shaft being disposed laterally between the front and rear surfaces of the container in the lower part of the interior of the container. A raw material comprising: a stirring body rotatably provided under the stirring body; and a spiral extrusion body rotatably provided below the stirring body substantially parallel to the rotation axis of the stirring body and pushing out the raw material in the axial direction by rotational action. In the supply device, the container has vertical front and rear surfaces, and both sides have vertical sides above the rotation axis of the stirring body, and a direction perpendicular to the rotation axis below the rotation axis of the stirring body. 1. A raw material supply device characterized in that the cross section of the stirring member is formed in an arc shape along the rotation locus of the stirring blade of the stirring member and the extrusion member.